基于单片机的低成本CMOS图像采集系统

Design of Low-cost Image Acquisition System Based on SCM

为了在物联网系统中实现图像采集,针对物联网传感节点的特点,提出了一种新型的低成本嵌入式图像采集系统,探讨了系统的基本原理和实现方法,并给出系统的软硬件设计方案。硬件方面,采用8位单片机、CMOS图像传感器、Flash存储器等主要器件构成系统的硬件平台,所选器件价格低廉,硬件连接简单,从而实现低成本。软件方面,详细介绍了系统的主要软件设计,并且提出一种全新的图像拼接算法,成功解决了单片机处理速度太慢的问题。试验结果表明:系统结构简单、体积小、实时性好、运行稳定,能够很好地满足用户图像采集的需求,应用领域广泛。

In order to realize the image acquisition in the system of internet of things, a new low-cost image acquisition system based on SCM was proposed according to the feature of internet of things. The basic principles of the system was discussed and the solutions of the hardware and software was designed. The hardware part is composed of embedded controller SCM, CMOS image sensor, flash memory, the price of the selected device is cheap, and the hardware connection is simple, which contributes to the low cost of system. In the software section, this paper introduces the systemg main software design, and presents a new image mosaicing algorithm, successfully solved the problem that the processing speed of SCM is too slow to capture image. The results show that this embedded image acquisition system has a simple structure, small volume, can rightly capture the image with the characteristics of good real time ability,running stabilization,can be very good to meet the demand of user,and has a very widely application field.